The Multiquip 179300100 is a genuine OEM Split Lockwasher 3/8" designed for MQD2H and MQD3H diaphragm pumps. As a factory-sourced hardware component, it meets the exact dimensional and material specifications required by Multiquip for these units. This lockwasher is a direct replacement for worn or missing hardware on MQD2H and MQD3H equipment, ensuring proper fastener retention throughout the assembly.
Key Features
- Genuine OEM Hardware Grade — Manufactured to Multiquip's exact material and hardness specifications, delivering the spring tension and bite needed to hold fasteners secure under pump vibration and load cycles.
- Exact 3/8" Sizing — Sized precisely for 3/8" fastener applications on these pump assemblies, seating flush without shimming or adjustment.
- Fits MQD2H and MQD3H Diaphragm Pumps — Confirmed OEM fitment for Multiquip MQD2H and MQD3H series diaphragm pump models.
- Prevents Fastener Loosening Under Vibration — The split-ring design bites into the mating surface and fastener, resisting loosening caused by the continuous vibration inherent in diaphragm pump operation.
- Critical Fastener Integrity — Loose or missing lockwashers in pump assemblies can lead to component misalignment, fluid leaks, or accelerated wear — using the correct OEM piece keeps connections torqued and secure.
A split lockwasher is a helical spring washer placed under a bolt or nut to resist loosening caused by vibration and dynamic loads. As the fastener is tightened, the split ends of the washer dig into both the fastener bearing surface and the mating material, creating a mechanical lock that maintains clamp force over time. In diaphragm pump applications — where the machine operates under constant reciprocating motion — fastener security is critical; a failed or absent lockwasher can allow bolts to back out, leading to misaligned components, fluid leaks, or pump failure.
Part Details
| Part Number | 179300100 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Split Lockwasher 3/8" |
Compatibility & Fitment
| Name | Model |
|---|---|
| Diaphragm Pumps | MQD2H |
| Diaphragm Pumps | MQD3H |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
